You should look at it from the opposite direction. Too much light kills plants, so instead of worrying if you have enough, you should insstead assume you have too much. Dim the lights to about 15% for the first 6 weeks or so and then gradually raise them if necessary.my tank is just starting and is empty, how can i understand if i have enought light
what are the symptoms of too much light?
Too much light drives the plants to demand more CO2 (and ferts) and if not met the plants will die releasing organics into the water allowing algae to bloom and take over.what are the symptoms of too much light?
the problem is that dimmer doesn't work correctly so i need to solve that issue before :-/